Lorraine saw no action during her World War One deployment in the Mediterranean. She was updated between the wars including new oil-fired boilers replacing the coal-fired ones and an aircraft catapult replacing the amidships turret.

Lorraine was again in the Mediterranean during World War Two and took part in the bombardment of the fortified Italian positions at Bardia, Libya. Admiral René-Emile Godfroy agreed to Lorraine being interned in Alexandria by the British after the fall of France. However, Lorraine again joined the Allies on 31 May 1943 and went on to take part in a number of shore bombardments against German forces.

After the war Lorraine was used for training purposes. She was decommissioned on 17 February 1953 and scrapped the following year.